How to create a recursive start loop (3 ports) and a recursive end loop (3 ports)

Hi everyone:

I need to find out how to create a recursive start loop (3 ports) and a recursive end loop (3 ports). Please, I need help. Thanks

Now sure what your data is, but what I have done is to append columns from different data tables together and then split them in the loop. This means I can use the 2 port recurrsive loop nodes to pass any number of tables of data. Could this help for you need?

David